A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
NSN 5975-01-391-9756
NSN 6610-01-317-4859
NSN 5985-01-327-3017
NSN 5996-01-555-7690
NSN 6220-01-442-1190
NSN 5985-01-386-3701
NSN 5945-00-132-1881
NSN 6240-01-187-7758
NSN 5985-00-203-1200
NSN 4140-00-120-1203
NSN 5935-01-435-4086
NSN 5895-01-200-7150